nitrous.. really?

Discussion in 'Motorized Bicycle General Discussion' started by momentummotorgroup, Oct 3, 2009.

  1. RedB66

    RedB66 New Member

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  2. Fabian

    Fabian New Member

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    Nitrous is great if the system is engineered correctly and used sensibly.

    I've looked at the links posted for nitrous installation and they pose one serious problem: an uncorrected air fuel ratio when the nitros is activated.
    This will make the motor run lean, overheat and if used in long bursts, cease the engine or damage the roller bearings if over revved.

    To use nitrous you must have a method of adding extra fuel to the airstream to maintain correct air/fuel ratio.

    Nitrous used in the right way is great, giving small engines a bit more power when it's needed, like climbing a hill.
    If the engine makes 2 horsepower at 3500 rpm or it makes 2.5 horsepower at 2500 rpm with nitrous, the overall load on the engine is not significantly increased.

    Scenario: you are approaching a hill doing 25 miles an hour. You know that the bike wont make it up the hill without pedalling.
    When the bike speed falls to 20 miles an hour, you hit the nitrous button and maintain 20 miles an hour.

    The engine has not been over revved, it didn't destroy itself and it will happily take another shot of nitrous with a corrected air/fuel ratio.

    Scenario 2: You are going down a hill doing 35 miles an hour - you hit nitrous with an uncorrected air/fuel ratio and the bike gets to 45 miles an hour and BOOM the engine either blows the bottom end bearing or ceases the top end or both together.
    Now you blame the nitrous for blowing up your engine.

    Someone in scenario 2 has just made a fool of themselves, then they advise everyone else that nitrous blows up your engine.

    I intend to fit nitrous to my bike, but it will be a well engineered system with a electric fuel pump coupled to a fuel injector supplying extra fuel when the nitrous is injected.

    Fabian
     
    #22 Fabian, Oct 13, 2009
    Last edited: Oct 13, 2009
  3. stv1jzgte

    stv1jzgte New Member

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    No offence but Nitros puts a masive load on any engine regardless or rpm, If you use a "wet type system" what is going to control the injector? microtec's are expensive!
     
  4. BarelyAWake

    BarelyAWake New Member

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    lol it's that "used sensibly" bit that gets most people that would strap a nitrous kit to their bike anyway laff

    Never the two shall meet I figure :p
     
  5. stv1jzgte

    stv1jzgte New Member

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    Also do they sell lil tiny bottle warmers?
     
  6. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    Put nitrous on your bike!
    It's expensive and will boost your engine to the amazing 2.1 horsepower level! You'll be able to almost feel the difference! All the neighborhood kids will think you are the coolest!
     
  7. stv1jzgte

    stv1jzgte New Member

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    you bubble burster!
     
  8. momentummotorgroup

    momentummotorgroup New Member

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    yep. like I said in the beginning.. it doesn't sound like a safe idea, particularly on these chinese engines which are prone to be wonky to begin with. Pumping extra crap to it to make it go faster seems the most dubious route to go. I'd rather go with an expansion exhaust or jackshaft kit than make a potential bomb outta my bike..
     
  9. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    Alrighty, the voice of reason has prevailed!
    Can we put this one to bed?
     
  10. speedracer831

    speedracer831 New Member

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    nos will work well put cram a couple cotton balls down the tube to regulate how much nos flows cause otherwise it flows way too fast for these engines. if you have the proper amount going into the engine, it wont blow up and it will give you quite a boost
     
  11. CalgarysFool

    CalgarysFool New Member

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    I've got the Spooky Carb.

    Haven't got a lot of miles on it yet (still a bit afraid to ride after a wipe out broke my finger), and still have to get it dialed in perfectly.

    But so far, I'll tell you, the carb makes the bike easier to start, and smoother running through a greater rpm range. I think acceleration is better. Not sure about top speed.

    The handlebar mounted choke is nice. And the thing looks nice with it's nifty air breather. The original plastic one looks like..."carp" next to the one they give you.

    The new throttle assembly is also nicer than the original that came on my Spooky Dresser.

    All, in, it's a great value for the money you spend.
     
  12. weekend-fun

    weekend-fun New Member

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    xct2

    Ha ha thats me!!! Sounds like dirty crap to me, a big ole hill will do you twice as much as that.......xct2
     
    #32 weekend-fun, Oct 14, 2009
    Last edited: Oct 14, 2009
  13. Bikeguy Joe

    Bikeguy Joe Godfather of Motorized Bicycles

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    I'll get right on that....how about if I use some Chore Boy?
     
  14. BarelyAWake

    BarelyAWake New Member

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    lol weekend-fun, I had NO idea what you were on about till I backread a bit :p
     
  15. weekend-fun

    weekend-fun New Member

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    sorry about the "big ole hill good do you blah blah blah'' typo. fixed it. Notice, i said SOUNDS, i ahev never tried this or seen it in action. But i take everyones word on it :p
     
  16. weekend-fun

    weekend-fun New Member

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    sounds like to much work, er, to risky for your motor. as i said in a earileir post, a big ole hill will do just (and maybe better) as fine as THAT stuff.
     

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